Use stable branch for gz-cmake4 #577

	name: Validate gazebodistro
	on: [push, pull_request]

	jobs:
	nosetests:
	name: Nosetests
	runs-on: ubuntu-20.04
	strategy:
	matrix:
	python-version: [3.8]
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v1
	with:
	python-version: ${{ matrix.python-version }}
	- name: Fetch upstream (to enable diff)
	run: \|
	git remote add unittest_upstream_comparision https://github.com/gazebo-tooling/gazebodistro.git \|\| git remote set-url unittest_upstream_comparision https://github.com/gazebo-tooling/gazebodistro.git
	git fetch --no-tags --depth=1 unittest_upstream_comparision master
	- name: Install Dependencies
	run: \|
	python -m pip install --upgrade pip setuptools wheel
	pip install PyYAML argparse
	pip install nose coverage
	pip install unidiff
	pip install PyGithub
	- name: Run Nose Tests
	run: nosetests -s
	yamllint:
	name: Yaml Linting
	runs-on: ubuntu-20.04
	strategy:
	matrix:
	python-version: [3.8]
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v1
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install Dependencies
	run: \|
	python -m pip install --upgrade pip setuptools wheel
	pip install yamllint
	- name: Run yamllint
	run: yamllint *.yaml

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